lh or rh

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The 5100 strike details are listed below: Only operates with 12VDC or 24VDC power supply. Will not operate with AC transformer. 12 or 24VAC can be converted to 12/24VDC using Von Duprin SO12 o...
The 4110 closer is handed, and will have an "RH" and "LH" on the casting next to the closer shaft. The regulating valves are going to be on the same side as the hand of the closer.
The correct method (process) for setting the hold open is: The 4110 HEDA arms are handed, verify correct hand arm. (RH or LH stamped on shoe bracket) Loosen the hold open nut at shoe bracket. ...
LCN no longer sells, repairs, or has any replacement parts for the track of the old SED units which had a built in detector in the track.    
The LCN 4010SE / 4110 SE series are obsolete, and on longer available. They were replaced by the 4040SE series. The 4010SE / 4110 SE track is replaced with the current 4040SE trac...
A  LHR (left hand reverse) door uses a RH (right hand) door closer. A RHR (right hand reverse) door uses a LH (left hand) door closer.
A door can be handed in several ways. The easiest way is to stand on the Push side of the door. Push the door away from you as if you are going to walk thru the opening. If the hinges are on yo...
To determine the hand of a door, view the door from the outside, security side or key side of door.  Once there identify which side are the hinges located on the, right or left side of t...
Go to the push side of the door opening.  See above illustration. If door swings out to the left, it needs a left hand door closer. If door swings out to the right, i...
First you need to determine if the closer is handed.  A handed door closer will only have a single shaft on one side of the closer for the arm to attach to. If the closer is handed...